resolve some errors in php logic, like strlen with str containing space that is interpreted as array instead of string

plug/map_prof/settings/mp_url_api.php

@@ -0,0 +1,23 @@
+<?php
+
+function mp_url_api() {
+	global $mp_api_key;
+	$mp_url = array(
+		'src'		=> 'https://maps.googleapis.com/maps/api/js',
+		'key'		=> $mp_api_key,
+		'callback'	=> 'mp_init_map',
+	);
+	$mp_src = "";
+	foreach ($mp_url as $url_key => $url_value) {
+		if ($url_key === 'src') {
+			$mp_src .= $url_value;
+			if (count($mp_url) > 1)
+				$mp_src .= "?";
+		}
+		else
+			$mp_src .= "&" . $url_key . "=" . $url_value;
+	};
+
+	return $mp_src;
+}
+?>